Run: 2026-04-25-01KQ2J82Q4M4MB0MCKQB966ZZA

Run Details

Duration:
2.1s
Cost:
$0.000029
Provider:
DeepSeek

Evaluation summary

Score Evaluator
Details Link
0.00% Matches word count (details)

Model input

User/Human
Please write the opening scene of a murder mystery where each sentence has exactly 20 words. Please make sure that each sentence has the same length. Only return the opening itself.

Model response

AI
Rain lashed against the old lighthouse keeper's window, blurring the frayed edges of his map. A single, severed finger pointed north upon the oaken table. The keeper did not scream; he only stared at the crimson stain spreading. A gust of wind extinguished his lamp, plunging the room into perfect, suffocating blackness. Then came the soft, deliberate creak of the door swinging open.
created_at"2026-04-25T14:56:06.889Z" 4/25/2026, 2:56:06 PM
model"deepseek/deepseek-v4-flash-20260423"
app_id182717
external_user(null)
streamedtrue
cancelledfalse
latency528
moderation_latency(null)
generation_time1591
tokens_prompt46
tokens_completion97
native_tokens_prompt39
native_tokens_completion84
native_tokens_completion_images(null)
native_tokens_reasoning0
native_tokens_cached0
num_media_prompt(null)
num_input_audio_prompt(null)
num_media_completion0
num_search_results(null)
num_fetches(null)
web_search_engine(null)
origin"https://ncbench.com/"
is_byokfalse
finish_reason"stop"
native_finish_reason"stop"
usage0.00002898
router(null)
provider_responses
0
endpoint_id"722e0746-2034-4d6e-a08f-e6271849ee9e"
id"9ad358c1-0bdd-435e-941b-10d776eca741"
is_byokfalse
latency273
model_permaslug"deepseek/deepseek-v4-flash-20260423"
provider_name"DeepSeek"
status200
user_agent"langchainjs-openai/1.0.0 ((node/v24.14.1; linux; x64))"
http_referer(null)
request_id"req-1777128966-pNwoi4I6OycH06wenYdD"
session_id(null)
api_type"completions"
id"gen-1777128966-htvNGwaKGtb3H7TzlYuR"
upstream_id"9ad358c1-0bdd-435e-941b-10d776eca741"
total_cost0.00002898
cache_discount(null)
upstream_inference_cost0
provider_name"DeepSeek"
response_cache_source_id(null)

Evaluation details

Result Evaluator Details Meta Data
0.00% Matches word count n/a
neededCleanfalse
sentences5
wordCounts
015
110
213
314
411